Problem 1 - Using samples of 200 credit card statements, an Auditor found the fo

Question

Problem 1 -

Using samples of 200 credit card statements, an Auditor found the following:

---Sample Number: 1     2     3   4   5   6   7   8    9    10   11   12   13 14 15

Number of Errors:    20 28    29   20   21   23   21   18    20   20    27    21   19   28   27

Determine lower and upper control limits for the fraction of errors using three-sigma limits.

The Quality Control Manager at a Credit Card Collection Center is concerned about how many complaints the company is getting from customers. The following data were collected for 15 days of operation:

-------Sample Number: 1   2   3    4    5   6   7    8    9   10   11   12   13   14 15

Number of Complaints: 2    2   5    2    8    0   9    5    1    8    10    8    8     8    6

Determine lower and upper control limits for the number of complaints they should expect each day using three-sigma limits.

.024 , .203 .057 , .17 .069 , .158 .046 , .181 None of the Above

Explanation / Answer

.057 , .17

.395 , 11.311

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.